<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="./demo02.css">
   <style>
    ul li{
        color: magenta;
    }
    ol a{
        color: rgb(1, 47, 255);
    }

   </style>
</head>
<body>
    <p class="css1"> hello css1 </p>
    <p class="css2"> hello css2 </p>
    <p class="css3 cs3"> hello css3 </p>

    <p id="a"> hello </p>
    <p id="b"> word </p>

    <ul>
        <li>干饭</li>
        <li>干饭</li>
        <li>干饭</li>
    </ul>
    <ol>
        <li>干饭</li>
        <li>干饭</li>
        <li>
            <a href="#">干饭</a>
        </li>
    </ol>
</body>
</html>